I have devices being parts of brands and repairs being part of devices. Now I'm trying to get a simple AJAX call which will allow me to search for a device by either brand name or device name. Unfortunately, I get circular references. Even when I've written a handler for circular references to limit it to one, I still get too much information in my objects.
Consider the following return from serialize on my DQL query:
[{"0":{"id":1,"name":"iPhone
1","logo":"iPhone1","brand":{"id":2,"name":"Apple","logo":"apple","devices":["iPhone
1",{"id":2,"name":"iPhone","logo":"iphone","brand":"Apple","deletedAt":null,"repairs":[]}],"deletedAt":null},"deletedAt":null,"repairs":[]},"name":"Apple"},{"0":{"id":2,"name":"iPhone","logo":"iphone","brand":{"id":2,"name":"Apple","logo":"apple","devices":[{"id":1,"name":"iPhone
1","logo":"iPhone1","brand":"Apple","deletedAt":null,"repairs":[]},"iPhone"],"deletedAt":null},"deletedAt":null,"repairs":[]},"name":"Apple"}]
Here I don't even need repairs at all. However, since it is referenced in the PartEntity, I still get a bunch of unnecessary repair info. How can I limit the data I get out of an object?
my Controller code:
public function ajaxShowDevicesAction(Request $request) {
//if ($request->isXmlHttpRequest()) {
$data = $request->query->get('data');
$result = "";
if ($data) {
$result = $this->getDoctrine()->getManager()->getRepository('AppBundle:Device')->findAllByBrandOrName($data);
}
if ($result) {
$encoders = array(new XmlEncoder(), new JsonEncoder());
$normalizers = array(new GetSetMethodNormalizer());
$normalizers[0]->setCircularReferenceHandler(function ($object) {
return $object->getName();
});
$serializer = new Serializer($normalizers, $encoders);
$jsoncontent = $serializer->serialize($result, 'json');
$response = new Response($jsoncontent);
return $response;
}
// else { # unsure how to give a "no results" response
// $response = new Response(json_encode(array()));
// $response->headers->set('Content-Type', 'application/json');
// return $response;
// }
// } else {
// throw new HttpException(403, "Ajax access only");
// }
}
You can use
setCircularReferenceLimit()
method for normalizers.
Handling Circular References
Related
Under Symfony4.2, I have a Translate entity (id, gb_name, fr_name) and LocationCountry entity (id, ISO3166-2 name: GB,FR, DE…, translate_id)
I define a CSV file with 255 countries ("GB", "Great Britain", "Angleterre"…) and I want to push it in Translate and LocationCountry entities tables with DataFixture.
I read carefully https://symfony.com/doc/current/bundles/DoctrineFixturesBundle/index.html#sharing-objects-between-fixtures
and
php create fixtures with automatic relations
src/DataFixtures/TranslateFixtures.php:
if ($csv_handle) {
while ($item = fgetcsv($csv_handle, $csv_max_line_length, $csv_delimiter, $csv_enclosure)) {
$obj = new Translate();
$obj->setGbValue($item[1]);
$obj->setFrValue($item[2]);
$this->addReference('country'.$item[0], $obj);
$manager->persist($obj);
}
fclose($csv_handle);
}
$manager->flush();
I am not sure addReference should be before flush() ?
src/DataFixtures/LocationCountryFixtures.php:
if ($csv_handle) {
while ($item = fgetcsv($csv_handle, $csv_max_line_length, $csv_delimiter, $csv_enclosure)) {
$translate_country = $this->getReference('country'.$item[0]);
$obj = new LocationCountry();
$obj->setIso3166Name($item[0]);
$obj->setTranslate($translate_country);
$manager->persist($obj);
}
fclose($csv_handle);
}
$manager->flush();
}
public function getDependencies() {
return array(
Translate::class,
);
}
If I remove addReference Translate entity is well filled.
But with the code above, it returns error:
In SymfonyFixturesLoader.php line 76:
The "App\Entity\Translate" fixture class is trying to be loaded, but is not available. Make sure this class is defined as a service and tagged with "doctrine.fixture.orm".
I think to have the right Use:
use Doctrine\Bundle\FixturesBundle\Fixture;
use Doctrine\Common\Persistence\ObjectManager;
use Doctrine\Common\DataFixtures\DependentFixtureInterface;
use App\Entity\LocationCountry;
use App\Entity\Translate;
Thank for your help
Doctrine loads the fixture files in alphabetical order; that's why you get an error. You can consider using function getOrder in your fixtures in order to set which one will be load first.
EDIT :
You get an error because you don't provide the right class in your getDependencies method :
public function getDependencies() {
return array(
TranslateFixtures::class,
);
}
In this case, I just remove src/DataFixtures/TranslateFixtures.php
and change src/DataFixtures/LocationCountryFixtures.php to do all job:
if ($csv_handle) {
while ($item = fgetcsv($csv_handle, $csv_max_line_length, $csv_delimiter, $csv_enclosure)) {
//$translate_country = $this->getReference('country'.$item[0]);
$country = new LocationCountry();
$translate_country = new Translate();
$translate_country->setGbValue($item[1]);
$translate_country->setFrValue($item[2]);
$country->setIso3166Name($item[0]);
$country->setTranslateCountry($translate_country);
$manager->persist($translate_country);
$manager->persist($country);
}
fclose($csv_handle);
}
$manager->flush();
Here is a working Apollo subscription handler:
componentDidMount() {
const fromID = Meteor.userId();
const {toID} = this.props;
this.toID = toID;
this.props.data.subscribeToMore({
document: IM_SUBSCRIPTION_QUERY,
variables: {
fromID: fromID,
toID: toID,
},
updateQuery: (prev, {subscriptionData}) => {
if (!subscriptionData.data) {
return prev;
}
const newIM = subscriptionData.data.IMAdded;
// don't double add the message
if (isDuplicateIM(newIM, prev.instant_message)) {
return previousResult;
}
return update(prev, {
instant_message: {
$push: [newIM],
},
});
}
});
}
instant_message is an array of objects to be displayed. Each object contains a date field. I need to sort the objects in this array by date.
This approach used to work with beta versions of Apollo:
//update returns a new "immutable" list
const instant_message = update(previousResult, {instant_message: {$push: [newAppt]}});
instant_message.instant_message = instant_message.instant_message.sort(sortIMsByDateHelper);
return instant_message;
I can sort the array, but Apollo throws an error with the returned object-- e.g. it is not found in props when the render routine needs it.
What is the correct way to return the sorted array from updateQuery? Thanks in advance to all for any info.
It turns out it wasn't the sorting that was causing the anomaly. It appears that subscriptions fail if the __TYPENAME of the returned object doesn't match something else here -- either the varname used in this routine ('instant_message' in the above code), or the varname of the array of objects returned in props to the render function. Lining up all these things so that they are identical fixes it.
I am trying to use a library for showing Flash Messages https://github.com/elpete/flashmessage But I am having trouble getting it working correctly. The documentation isn't that great and I am new to ColdFusion. I want to have the ability to have persistent error messages across pages. Specifically during checkout so when the user needs to go back or a validation error occurs the message will appear. According to the documentation:
The FlashMessage.cfc needs three parameters to work:
A reference to your flash storage object. This object will need
get(key) and put(key, value) methods. A config object with the
following properties: A unique flashKey name to avoid naming
conflicts. A reference to your containerTemplatePath. This is the view
that surrounds each of the individual messages. It will have
references to a flashMessages array and your messageTemplatePath. A
reference to your messageTemplatePath. This is the view that
represents a single message in FlashMessage. It will have a reference
to a single flash message. The name is chosen by you in your container
template. Create your object with your two parameters and then use it
as normal.
I am getting the error
the function getMessages has an invalid return value , can't cast null value to value of type [array]
I had this script somewhat working at one point but it seems very finicky. I believe it is my implementation of it. I am hoping someone here can help me figure out where I went wrong. Or give me some pointers because I am not sure I am even implementing it correctly.
This is What I have in my testing script:
<cfscript>
alertStorage = createObject("component", 'alert');
config = {
flashKey = "myCustomFlashKey",
containerTemplatePath = "/flashmessage/views/_templates/FlashMessageContainer.cfm",
messageTemplatePath = "/flashmessage/views/_templates/FlashMessage.cfm"
};
flash = new flashmessage.models.FlashMessage(alertStorage, config);
flash.message('blah');
flash.danger('boom');
</cfscript>
And inside of alert.cfc I have:
component {
public any function get(key) {
for(var i = 1; i < ArrayLen(session[key]); i++) {
return session[key][i];
}
}
public any function put(key, value) {
ArrayAppend(session.myCustomFlashKey, value);
return true;
}
public any function exists() {
if(structKeyExists(session,"myCustomFlashKey")) {
return true;
} else {
session.myCustomFlashKey = ArrayNew();
return false;
}
}
}
The Flash Message Component looks like this:
component name="FlashMessage" singleton {
/**
* #flashStorage.inject coldbox:flash
* #config.inject coldbox:setting:flashmessage
*/
public FlashMessage function init(any flashStorage, any config) {
instance.flashKey = arguments.config.flashKey;
singleton.flashStorage = arguments.flashStorage;
instance.containerTemplatePath = arguments.config.containerTemplatePath;
instance.messageTemplatePath = arguments.config.messageTemplatePath;
// Initialize our flash messages to an empty array if it hasn't ever been created
if (! singleton.flashStorage.exists(instance.flashKey)) {
setMessages([]);
}
return this;
}
public void function message(required string text, string type = "default") {
appendMessage({ message: arguments.text, type = arguments.type });
}
public any function onMissingMethod(required string methodName, required struct methodArgs) {
message(methodArgs[1], methodName);
}
public any function render() {
var flashMessages = getMessages();
var flashMessageTemplatePath = instance.messageTemplatePath;
savecontent variable="messagesHTML" {
include "#instance.containerTemplatePath#";
}
setMessages([]);
return messagesHTML;
}
public array function getMessages() {
return singleton.flashStorage.get(instance.flashKey, []);
}
private void function setMessages(required array messages) {
singleton.flashStorage.put(
name = instance.flashKey,
value = arguments.messages
);
}
private void function appendMessage(required struct message) {
var currentMessages = getMessages();
ArrayAppend(currentMessages, arguments.message);
setMessages(currentMessages);
}
}
I'm working with a project, where I have EMF model 'A' which is referenced in many other models 'B','C'... etc. What I want is I want to give a rename feature for these resources. So when user renames 'A', its references have to be updated.
Please provide some idea on it, if there is any frame work for this or I have to get all the references and then programmatically iterate and update the references.
I solved the same problem in another way.
The fundamental problem is that a referenced resource file might be renamed, and this breaks the references.
Instead of a refactoring that automatically updates all references I created a Repair File References command, which the user can invoke on an edited model.
The command performs these steps:
Prompts the user to select a missing resource to repair
Prompts the user to select a replacement file
Updates all objects in the model that has a proxy URI that matches the missing resource. Replaces proxies with resolved objects in the new resource.
If you still want to make a refactoring instead, I think you anyway can use my code as a starting point.
/**
* Locates and fixes unresolved references in a model.
*/
public class ReferenceRepairer {
public static final String COMMAND_ID = Activator.PLUGIN_ID + ".commands.repairReferences";
/**
* 1) Prompts the user to select a missing resource to repair
* 2) Prompts the user to select a replacement file
* 3) Updates all objects in the model with a proxy URI that matches the missing resource. Replaces proxies
* with resolved objects in the new resource.
*/
public static void repairResourceReference(Shell shell, EditingDomain editingDomain) {
Resource res = promptMissingResource(shell, editingDomain);
if (res == null) return;
IFile newFile = promptReplacementFile(shell);
if (newFile == null) return;
repairReferences(editingDomain, res, URI.createPlatformResourceURI(newFile.getFullPath().toString(), true));
}
private static void repairReferences(final EditingDomain editingDomain, Resource missingRes, final URI newUri) {
URI missingUri = missingRes.getURI();
// Create new resource for the replacement file
Resource newRes = editingDomain.getResourceSet().getResource(newUri, true);
Map<EObject, Collection<Setting>> proxies = UnresolvedProxyCrossReferencer.find(editingDomain.getResourceSet());
CompoundCommand repairRefsCommand = new CompoundCommand("Repair references") {
/**
* Disallow undo. The model changes could be undone, but it seems impossible to
* recreate a non-existent resource in the resource set.
*/
#Override
public boolean canUndo() {
return false;
}
};
// Resolve all proxies from this resource and repair reference to those objects
for (Entry<EObject, Collection<Setting>> entry : proxies.entrySet()) {
EObject proxy = entry.getKey();
URI proxyUri = EcoreUtil.getURI(proxy);
if (!proxyUri.trimFragment().equals(missingUri)) continue;
EObject resolved = newRes.getEObject(proxyUri.fragment());
if (resolved.eIsProxy()) continue;
// Update all objects that have references to the resolved proxy
for (Setting sett : entry.getValue()) {
if (sett.getEStructuralFeature().isMany()) {
#SuppressWarnings("unchecked")
EList<Object> valueList = (EList<Object>) sett.get(true);
int proxyIx = valueList.indexOf(proxy);
repairRefsCommand.append(SetCommand.create(editingDomain,
sett.getEObject(), sett.getEStructuralFeature(), resolved, proxyIx));
} else {
repairRefsCommand.append(SetCommand.create(editingDomain,
sett.getEObject(), sett.getEStructuralFeature(), resolved));
}
}
}
if (!repairRefsCommand.isEmpty()) {
editingDomain.getCommandStack().execute(repairRefsCommand);
}
// Remove the
editingDomain.getResourceSet().getResources().remove(missingRes);
}
private static IFile promptReplacementFile(Shell shell) {
ElementTreeSelectionDialog dialog = new ElementTreeSelectionDialog(shell,
new WorkbenchLabelProvider(), new WorkbenchContentProvider());
dialog.setInput(ResourcesPlugin.getWorkspace().getRoot());
dialog.setTitle("Select Replacement Resource");
dialog.setMessage("Select a file which will replace the missing file.");
dialog.setValidator(new ISelectionStatusValidator() {
#Override
public IStatus validate(Object[] selection) {
if (selection.length == 0 || !(selection[0] instanceof IFile)) {
return ValidationStatus.error("The selected object is not a file.");
}
return new Status(IStatus.OK, Activator.PLUGIN_ID, "");
}
});
if (dialog.open() != Window.OK) return null;
return (IFile) dialog.getFirstResult();
}
private static Resource promptMissingResource(Shell shell, EditingDomain editingDomain) {
ElementListSelectionDialog dialog = new ElementListSelectionDialog(shell,
new LabelProvider() {
#Override
public String getText(Object elem) {
return ((Resource) elem).getURI().toString();
}
})
{
/** Make dialog OK button enabled when there are errors, instead of vise-versa. */
#Override
protected void updateButtonsEnableState(IStatus status) {
Button okButton = getOkButton();
if (okButton != null && !okButton.isDisposed()) {
okButton.setEnabled(!status.isOK());
}
}
/** Disable filter text field */
#Override
protected Text createFilterText(Composite parent) {
Text text = super.createFilterText(parent);
text.setSize(0, 0);
text.setLayoutData(GridDataFactory.swtDefaults().exclude(true).create());
text.setVisible(false);
return text;
}
};
dialog.setTitle("Select Missing Resource");
dialog.setMessage(
"Select a URI of a missing resource file that should be replaced by an URI to an existing file.");
dialog.setElements(getMissingResources(editingDomain.getResourceSet().getResources()).toArray());
if (dialog.open() != Window.OK) return null;
return (Resource) dialog.getFirstResult();
}
private static List<Resource> getMissingResources(List<Resource> resources) {
List<Resource> missingResources = new ArrayList<>();
for (Resource res : resources) {
try {
if (res.getURI().isPlatformPlugin()) continue;
URL url = FileLocator.toFileURL(new URL(res.getURI().toString()));
java.net.URI uri = new java.net.URI(url.getProtocol(), "", "/" + url.getPath(), null);
if (!Files.exists(Paths.get(uri))) {
missingResources.add(res);
}
} catch (InvalidPathException | IOException | URISyntaxException exc) {
// Ignore. There mighe be weird Sirius resource in the resources set which we can't recognice
}
}
return missingResources;
}
}
I am using Docrine 1.2 with Zend Framework and trying to save a Doctrine Collection.
I am retrieving my collection from my table class with the following code.
public function getAll()
{
return $this->createQuery('e')
->orderBy('e.order ASC, e.eventType ASC')
->execute();
}
I also have the following class to reorder the above event records.
class Admin_Model_Event_Sort extends Model_Abstract
{
/**
* Events collection
* #var Doctrine_Collection
*/
protected $_collection = null;
public function __construct()
{
$this->_collection = Model_Doctrine_EventTypesTable::getInstance()->getAll();
}
public function save($eventIds)
{
if ($this->_collection instanceof Doctrine_Collection) {
foreach ($this->_collection as $record)
{
$key = array_search($record->eventTypeId, $eventIds);
if ($key !== false) {
$record->order = (string)$key;
}
}
return $this->_saveCollection($this->_collection);
} else {
return false;
}
}
}
The _saveCollection method above is as follows
/**
* Attempts to save a Doctrine Collection
* Sets the error message property on error
* #param Doctrine_Collection $collection
* #return boolean
*/
protected function _saveCollection(Doctrine_Collection $collection)
{
try {
$collection->save();
return true;
} catch (Exception $e) {
$this->_errorMessage = $e->getMessage();
OpenMeetings_Logger_ErrorLogger::write('Unable to save Doctrine Collection');
OpenMeetings_Logger_ErrorLogger::vardump($this->_errorMessage);
return false;
}
}
The event id's in the above save method is simply an enumerated array of event id's, I am using the keys of the array to set the sort order of the events using the order field. If I do a var_dump of the collection to an array ($this->_collection->toArray()) I get the correct data. However when I attempt to save the collection I get the following error.
"SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'order = '0' WHERE eventtypeid = '3'' at line 1"
Is there anyway I can get Doctrine to expand on this error, the full SQL statement would be a start, also if anyone knows as to why this error is occuring then that would be very helpful.
Many thanks in advance
Garry
EDIT
I have modified my above code to try to work one record at a time but I still get the same problem.
public function save($eventIds)
{
foreach ($eventIds as $key => $eventId) {
$event = Model_Doctrine_EventTypesTable::getInstance()->getOne($eventId);
$event->order = (string)$key;
$event->save();
}
}
Ok I have found the problem. I was using the MYSQL reserved word order as a field name thus the error, changed it to sortOrder and the problem went away.
Hope this helps someone with a similar issue.
Garry